Will entered the room. Lily's hair was shorter than he had remember, like a Shirley Temple like cut. She tensed as he entered the room. She looked a lot younger, signs of age erased and sagging parts tightened up. Will sat on the bed and looked at her toes, he knew as both Erika and Will, what would turn her on. He grabbed her foot and started tickling it. Lily started to giggle, just like Erika she was extremely ticklish.
"Erika-stop-that tickles-" she giggled.
Her long toned legs started to move as she squirmed as the laughter started to build in her. Soon she laughing and giggling so much that she slid down the length of her bed. Her body shook with laughter as she tried to kick Will in the chest with her free foot. He was so hard muscled that she might have kicked a brick wall. Her tits shock inside her bra as she clutched her chest. Her leg went high in the air and Erika could imagine her vagina underneath the thin layer of her panties.
Slowly Erika reeled her in, she came towards him. Tits and her body wobbling with the laughter. She came closer to her younger husband, but under the control of her daughter. Lily was sitting up whacking Will as she continued to laugh. Erika pinned her mother down by her forearms and used her father's body to widen her mother's legs. He worked her panties off and started to eat her out. He expected her to start moaning, but she kept laughing at him. He looked up from between her legs and saw that her breasts had come loose from her bra. She was nearly ready.
He crept up the length of her body. His exposed penis was like a sword ready to be plunged into an enemy. Will ripped off Lily's panties as if they were made out of tissue paper and slipped into her moist hole.
Lily was caught of guard, the foreplay had ended sooner that Will normally would. Now he was inside her and she was unprotected. The look of her face was one of fear as the full length of his cock was inside her pussy. The walls of her vagina gripped the cock.
"Aaah! It's... it feels big!" Lily moaned
Lily whimpered and moaned sheepishly, her hands clinging to the bed as Will stimulated her from the outside and from the inside. Her vagina became animated by wild spasms.
"Erika, I..! GNH!" she let out in extasy as a wave of orgasms hit her. Erika felt her cock vibrate harder and fully develop inside Lily's petite body. His balls felt massively inflated with cum.
Lily realized that this wasn't Will, it was another version of Will driven by another mind. She found powerful hands pushing her legs back. Will had wanted good sex, this thing that was fucking her just wanted her knocked up.
"Erika-stop-Jesus! Ugh!" another orgasm gripped her body.
Erika had already shot off a load, probably enough to get Lily pregnant. But the new mind that had a hold of her wanted more. He felt the power churning in his balls as he looked down at his dick disappearing into her vagina. He was so powerful that he barely moved his hip, thrusting only a quarter inch and she was lost in orgasm. She was his bitch, an incubator for his babies.
Lily found her head being knocked against the headboard, as if Erika/Will were trying to knock her out. She felt pain and her body was sore. Will had never been this rough with her, wild like an untamed stallion. This version of Will was a machine, she felt like a cow attached to a milking machine. This was no man, something alien or mechanical.
"Okay...stop...pleassse" she whined.
Will's face was blank as he kept pounding her pussy. Then he let out a slow groan as he released his load.
Suddendly an incredibly pleasurable throb ran through Erika's contracting balls and along her dick, and she started shooting heavy bursts of thick cum in her Lily. "EM... GNH!" she let out lewdly, her body bucking as hte payload was delivered.
Lily whimpered, Erika's hips bucking so wildly that they fell off the bed and hit the floor.In the middle of the room, with Erika's knot still keeping them attached as her spasming cock was going through mechanical motions, releasing surge after surge of her seed.
Lily hit another orgasm and arched her back again, letting out high pitched moans. Erika could not control the flow of semen escaping her cock, and she was clinging to Lily's body as hard as she could as she was filling her with her seed. Under her father's hands, she felt Lily's tummy stretching.
"Ah-ha!" Lily cried as she arched her back thrusting her tits in the air.
Another burst from Erika's cock hit her unprotected womb.
"Ugh" she moaned weakly as Erika pulled out.
Lily realized that she had just been been used as a pawn by a much powerful entity that had seized control of her daughter. She knew she was pregnant. Wasn't that the point? Will was about twice her weight, but it felt more like three given the brute force. Like a bull mounting a cow. She was confused and scared more for what Erika had become. She started to cry quietly as she sobbed for herself, Erika and what she knew was going to be her fourth child.
Erika disentangled her borrowed body from her mother and staggered away. Feeling sleepy.
Wrapped in a sheet she was curled up in the fetal position crying. As Erika staggered away she noticed the bruising on her mother's thighs and ass. The bruising from her rough handling. She felt the power of William's body slipping away. Her cock was shrinking. She had broken her mother and gotten what she wanted out of her; a baby and her silence. She had returned her proper age, the fat on her thighs had returned.
As William started to leave her she staggered into her bed and let the change back to her tween body happen.